当然可以。they和你的强调句型其实没有关系,和这个词在主句中的成分相关
用them
表语由宾格人称代词充当,所以用them,而不用主格they
用them,其实可以把他们分解开来看成2个句子。这样就好想多了
1. It is 后面可接复数
2. 用 they 还是用 them 要看你是说语法还是习惯
按语法这个句型要用 they
但很多很多人(即使英语母语者)习惯用 them
因此 it is them 已经被接受了。
其他类似例句:
It is I who bought the watch from you
It is he who started the argument
Was it the Chinese who invented paper-making?
Yes, indeed, it is they who invented it!
希望帮到了你,满意请及时采纳,谢谢。